GRAPEVIEW 3 SW, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(453284) GRAPEVIEW 3 SW
From Year=1948 To Year=1995
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 791 638 616 465 296 157 69 58 161 404 603 750 5009
60 636 497 461 316 157 52 9 5 54 251 453 595 3487
57 543 413 368 229 89 17 1 0 21 167 363 502 2714
55 481 356 307 175 53 6 0 0 9 119 304 440 2251
50 327 218 159 64 7 0 0 0 1 35 165 287 1261
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
Table updated on Jul 28, 2006
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu